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You can drive directly up to 2300W (10A) with your thermostat Wattstemp series 750 and
760 (fig1), above this power you must install an external power relay (contactor) to optimize
and keep a good regulation (fig2).
You could connect and drive directly a power up to 3600W only if you use the external
sensor for the regulation.
Mounting instruction:
All electrical conduits to the thermostat box that contain heating cable and floor
sensor must be sealed to protect the thermostat against hot air currents.
In case of the installation use a floor sensor: the sensor must be mounted alone in a
separate conduit.
If your installation doesn't use the pilot wire, don't connect this wire on the
thermostat to avoid electrical perturbation.
!
Don't forget to adjust the power parameter. (Installation menu 05)
(Red)
L
N
(Blue)
Fig1
One or more cable loops for
a total power up to 2300W
Pilot wire : only
available in the
Wattstemp 760
Clok
programmer
L
Optional:
Floor sensor
L
N
(Blue)
(Red)
Power
Relay
Junction
box
Clok
programmer
Pilot wire : only
available in the
Wattstemp 760
Optional:
Floor sensor
Fig2
Several cable loops for a
total above 3600W
L
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